[GreenKeys] Creeds 7b

[Sam Hallas]

Don Hague wrote:
> I am a volunteer researcher at the Military Aviation Museum in Virginia
> Beach VA.  The museum has purchased and transported a watch tower from
> Goxhill England for reconstruction at the museum and we are trying to
> get a line on the equipment installed during WWII.
>
> Anyone have a line on a Creeds 7b.

What would you like to know, Don? The Creed Model 7b was widely used by 
radio amateurs in the UK, Australia, New Zealand and other places with a 
British influence.

A Google for Creed Model 7b turns up a number of sites, including 
RTTY.COM, Baudot.net and my own humble offering.

> Each system consisted of:
> Teleprinter type 7b

Information is available in the RSGB Teleprinter Handbbok, by Hobbs, 
Yeomanson and Gee,  ISBN 0-900612-59-2

> Equipment Table DTN 2000
> Rectifier 22 (for 110v motor)
> Rectifier 26a (for signaling power)

I have the diagrams for these on my web site.
Equipmt table DTN 2000: TG 3064, 3535 & 3526
Rectifier 22: TG 802
Rectifier 26a: TG 1058

See the links from
<http://www.samhallas.co.uk/repository/n_diagrams/index.htm>

> Bell type 564a
Are you sure that's right? There is a Bell No 56A which is 2-5 or 5-10 
volts DC with a 2.5 inch gong.
Diagram N656
<http://www.britishtelephones.com/bell56.htm>

There is also a Bell No 64, which is a magneto bell with various gong 
types and sizes.
<http://www.britishtelephones.com/bell64.htm>

Greenkeys Member Alf Fisher, curator at the RAF Signals Museum has 
plenty of Creeds in action and may be able to help with more information 
on the actual installations.
<http://www.rafsignalsmuseum.org.uk/>

Cheers,
Sam